Gas-stove.



G. P. & F. L. GRADY.

(as new APPLICATION FILED JULY 3, 1901. I

v Patented Oct. 13, 1908.

' animus-sum- 1. 2 1. I

G. F. 6: I. L. GRADY. GAS STOVE.

nnwum! nun mus, 1901.

900,998. Patented Oct. 13,1968.

2 SHEETS-BEBE! B.

z m ('karZes176raZy;Inv razor I H i y it. may concern:

Beit wn that we, Cium.ns F. Gum? and Frans L. Gaanr, citizens of the United and residents of Buffalo, in the of Erie and State of New York, have men ed a new and useful Improvement in Go -Stoves, of which the fo ification.

This invention relates to gas and vapor stoves and more particularly to ranges and has for its object to produce a stove of this character in which the air supply is controlled so as to prevent an excess of a1r being admitted to the burners and the outlet fines and which alrovides free ventilation 'for the burners of the same.

In the accompanying drawings cons of 2 sheets: Figure 1 1s a top plan view 0 our improved gas or vapor stove showin the top, li and other parts removed for c earness of illustration. Fig. 2 is a vertical cross section thereof in line 2-2, Fig. 1. Figs. 3 and 4 arevertical lon 'tudinal sections in lines 3-3, and 4-4,. ig. 1, respectively. F' 5 is a fra mentary vertical cross section in fiine 55, ig, 1.- Fi 6 is a cross section, similar to ig. 2, s owing a modified construction of our invention. Fig. 7 is a fragmentary view like the last mentioned, showin another modification.

Simifiir letters of reference indicate corresponding parts throughout the several views.

Referrin to the construction shown in Fi 1-5, represents the bottom, B, B the aitl e and rear walls, and C the top, respectively, of the body of the stove. This body rests with' its bottom on top of an oven D of any usual or approved construction such asare commonly used in connection with gas stoves. On the central part of the rear wall is formed a rearwardly projecting pocketor bay E which opens at its uptper end into an outlet/collar or nozzle 0 on e rear part of the top which forms the outlet of the stove and may receive a pipe whereby the stove is connected with the chimney.

In to of the body are the holes over which e cooking dishes are placed, our of such holes being referably employed and distributed over t e area .of the top and each normally closed b a solid lid F in the usual manner but if d esired the same may bebridged acoeking dish or it ma G represents an uprig e stove and any attachments to left open.

'Spodfloatlon of Letter. resin. Application sac m e, am. am as. areas.

lowing is a by a skeleton gzid'for supportingt partition arranged s -wraith; rams L. 51

- new; e... 18, lacs.

transversel in the rear art of the s ace within the body and'exten ing from the tto thereofto within a short distance of the 1:02 thereby formin a transversemain-flue or conduit (7 in the between the partition and the rear wal "B and a narrow transverse passagewa or slit 1 between the Egper end of the partition an the to of the y which connects the space wi the upper front art of the body with. the flue g, as shown in igs. 1, 3 and 4.

The central lpart of the vertical partition G is arranged engthwise of the rear wall B but its en party is referably extended forwardly lengthwise o the side walls B, as

shown in F gs. 1 and 5, formingan enlargement 7). on

e main flueg at opposite ends thereof to permit of conveniently connecting therewith the outlet flue h -of an adjacent water heater, broiler or the like, thereby avoiding the necessity of making separate chimney connections for this purpose without however interferin with the draft of the gas or vaporstove. ngthwise above the central part of the bottom of the body is arranged an oven flue or conduit I which communicates by means of openin i in the body bottom with the oven wh1le its rear end communicates with the main flue g, thereby conducting the gases from the oven to the chimney. his oven flue is preferably formed b means of an inverted U-shaped hood the ongitudinal side walls I of which engage with guide ribs i on the upper side of the body bottom. The vertical partition G and'the hood may be secured in place in any suitable manner but preferably by the means shown in Figs. 1, 2 and 3 consisting of a vertical front screw 7' passing through the front of the hood and the bottom, a vertical rear screw 7" passing through the rear part of the hood andthe bottom and also through a lug 7' on the vertical partition, and horizontal side s ews or bolts i passing through the side walls of the body and the end extensions of the vertical partition. Horizontally within the stove partition which divides the s ace within the same in front of the vertica partition into an upper burner or heating chamber L and a lower air conduit or chamber L. As shown inFigs. 1 and 2 this horizontal artition is constructed in two sections K, each of which rests with its .inner longitudinal edge on the adjacent part of the oven flue and rests with its rear edge on a horizontal body is a resting on the bottom of shown in Figs. 2 and 4.

flange 1 formed on the front side'ofthe vertical artition and the same is supported at its out outer corner by a leg P formed on the underside-of this partition section and the stove body, as

Any desired number of air ope M may be formed in the horizontal partition but as shown each 1 of the horizontal partition sections has two of such air 0 ni s which are one behind the other and eac vertically in line with the companion lid of the stove. Above each of these air openings is arranged a burner N of any suitable construction which is referably sup rted by a cross bar m exten ing across an opening. These burners are supplied with gas by means of tubular'shanksnextending horizontally and lengthwise forward throu hthe burner chamber to the front side. 0 stove where they are provided with air mixers n of any suitable construction.

Each burner is surrounded by r circular or tubular guard, shield or bowl 0. which forms a combustion chamber around the burner. Each guard preferably rests with its lower end within a guide r m or flange ,0 on the respective horizontal partition section while its upper large end surrounds the respective lid opening and terminates short 7 of the underside from the stove top leaving it combines with burning a narrow annular outlet opening space or slit p between the guard and said top, as best shown in Figs. 2 and 4. Instead of making theoutlet space between the top of each guardand the stove top in the form of a continuous slit p, as shown in Figs..2 and 4, the guard may be carried up to the stove top and provided at its upper end with an annular series of 0 enings p, as shown in Fig. 6. This guard ares upwardl the diameter of its upper or large end ing preferably the same as the diameter of the respective lid 0 ning while its lower small end is comparatlvel close to the burner. The lower ed e 0 each guard is preferably provided wlth a notch 0 which receives the tubular shank of the respective burner.

The front end of the burner chamber .is preferably closed by an upri ht plate, shutter or wa 1 Q which is provi ed in its lower edge with suitable means for receiving the front arts of the tubular shanks and which is pre erably detachably secured in place by a turn button r engaging with the stove top, as shown in Fig. 3, or by any other suitab e means. 7

In the operation of this stovethe bulk of the air for supporting combustion enters the two sections of the air chamber or flue L through the o 11 front ends thereof and then passes upwar 1 through the openings M in the sections of t e horizontal-partition where s at the burners for producing the heating ames. The area opening in the top escape without first becoming of the air supplyopenings iii and around the burning and not air which has been contaminatefi y the products of combustion from other burners.

All roducts of combustion ass from the inner sides of the burner guar s through the passa -wa'ys between the upper edges of the guar s O and the stove top into the outerpart of the burner chamber, thence rearwardly through the passage-way between the upper edge of the verticalpartition G and the stove top into the transverse flue, and thence rearwardly into the pocket E and u wardly throu h the collar or-nozzle e to tli stove-pipe an chimney.

By confining air around the burners by means of the guards or shields-and restrictmg the outlet etween the same and the stove top, no part of the air which is admitted'can mixed or in direct contact with the burning es and serving its purpose as an aid to e ect thorough combustion. Furthermore, the shields protect the burners so that the products of combustion of one burner will not interfere with the combustion of gases in another burner and the shields also concentrate and retain the heat under the cooking dish or utensil in use above the respective burners.

Inasmuch as no more air is su plied to the burners than is necessary to efl' ct complete combustion there is no surplus air to carry away, thus avoiding congestion of the conduits and preventing interference with the draft on the oven or other appliances which maybe connected with the flue system of the stove. The supply of air to each burner may be adjusted or controlled either by the size of the air openings M or the relative position of the burner to said openings. 1

The outlet for each burner between its companion bowl shaped guard and the top of the stove is of 'suchcapacity that it will properly carry away the products of combustion develo ed by that particular burner and the relation of this outlet to the lid opening above the same is such that when the lid thereof is opened it will not permit an undue draft from the same into the flues and chimney.

The advantage in employing a vertical partition across the rear of the combustion chamber is that it provides a flue to the ends of which the fines of water heaters, broilers &c. may be connected and it also enables the passa e-way connecting the burnerchamber and t 1e main transverse flue to be extended to efiect complete combustion air only is by t is means j'ally can-yin .away the burned gases from d. on. 1

the different urners while'at the same time preventing any material checking of the draft when the lids over the burners are reg'riddles aressubstiuited for the solid lids'or-when the front is left open. v

,The advantage in the use of the oven flue isthat it provides a convenient and cheap construction and when combined with the transverse rear flue a positive d ft for the.

oven is obtained which insures s ient air be drawn to the oven burner to effect complete combustion and it also insures the esca of all odors from the oven to the chimney. v

If desired the oven flue in the. gas stove may be omitted, as shown in Fig. 6, in which case the horizontal partition K may be formed in one piece and the products of combustion from the oven maybe otherwise, dis sed of.

fish the stove is intended for use without an oven, the bottom A of the body may be omitted in which case the horizontal parti-' tion K forms the bottom of the burner Y chamber and air is admitted directly into the same through the openings M in this horizontal partition or bottom and the latter is held'm an elevated position by legs S or other suitable support, as shown in Fig. .7.

Although the best results are obtainable .by using the shutter or wall .Q for reventing entrance of air at the front en of the burner chamber the same if desired may be omitted and still retain the advantages due to other novel features of construction in this stove. It is also not necessary that this stove be connected with a chimney as most of the advantages will be retained b disposing of the products of combustion ot erwlse.

We claim as our invention: 1. A stove having a burner chamber provided with an outlet, and a stationary ver-' tical partition arranged transversely within the chamber adjacent to said outlet and terminatin at its upper end short of the top a passage between of the c amber fOlIIllIl these parts for the pro nets of combustion, substantially as set forth.

2. A stove having a burner chamber provided with an-outlet at its rear, burners arranged in said chamber and a vertical partition arran d within the rear part of said chamber ad acent to the outlet and havin one art arranged parallel with the rear wa l of t e chamber, and an end portion extending arallel with the adjacent side wall of the c amber, substantially as set forth.

3. A stove having a burner chamber provided with an outlet at its rear, burners arranged in said chamber and a vertical parti tion arran ed within the rear part of the chamber adjacent to the outlet and having f k its central part arranged :parallel with the rear wall of the chamber and both of its end parts extended parallel with the side walls of the chamber, substantial] as set forth. 4. A- stove comprising a" y having an outlet 'at oneendand o ings in its bottom for communication wit 7 an oven, a-vert-ical artition arra transversely within the dy adjacent to the outlet forming a main flue, anv oven flue communicating on its underside with said oven openings while one of its ends opens into said main flue, a horizontal partition arranged in said body and dividing the same into an up 1' burner chamber and a lower air supply and having one or more air mlet o mugs, and a burner arranged above each 0 said air inlet openings, substantially. as set forth.

5. A stove comprising a body having an outlet at one end and openings in its bottom for communication wit an oven, a vertical partition arranged transversely in the body adjacent to the outlet and formin a main flue, an oven flue arranged on sai bottom over said oven openings and communicatin at one end with said main flue, a horizonta partition arranged in the body and dividin the same into an upper burner chamber an a lower air supply chamber and having air inlet openings, and a burner arran over each air supply opening, substantial y as set forth.

6. Astove comprising a body having an outlet at one end and openings in its bottom for communication with an oven, a vertical partition arranged transversely in the body adjacent to the outlet formin a main flue, an oven flue arranged on said J0tt0ln over said oven 0 nings and communicating at one end wit said main flue, a horizontal partition arranged in the body and dividing the same into an u per burner chamber and a lower air supp y chamber and having air inlet openings, a burner arranged over each air supply 0 ening, and a shield arranged in the burner chamber around each burner and its air inlet opening, substantially as set forth.

7. A stove comprising a body having an outlet at one. end and oven openings centrally in its bottom for connection with an oven, a vertical artition arranged transversely in the b0 y adjacent to the outlet and formin a maln flue, an ovenflue arranged on t e bottom of the body over said oven openings and connecting the same with the main flue, a horizontal partition which divides the body into an upper burner chamber and a lower air supply chamber and consisting of two sections arranged on opposite sides of the oven flue, each section being provided with air supply opening:, and a burner arran d in the burner cham r over each of sairdhair supply openings, substantially as set 8. A store abody having an outlet at one on and oven openings centrally in its bottom for connection witlf an oven, a vertical artition arranged trans- 5 versel in the y adjacent to the outlet and a mam flue, an oven flue arranged on t e bottom of the body over said oven openings and connecting the same with the main flue, a horizontal partition which 10 divides the body, into an up burner chamber and a lower air supply 0 amber and consisting of two sections arranged on opposite sides of the oven flue, each section being pro- CHARLES F; GRADY, FRANK L. GRADY.

Witnesses:

' M. J. TERRY,

CHARLES V. LYNCH. 

